DATA QUALITY IS DEGRADED DURING THE PROCESS OF EXTRACTING AND MERGING DATA FROM MULTIPLE HETEROGENEOUS SOURCES. BESIDES, USERS HAVE NO INFORMATION REGARDING THE QUALITY OF THE ACCESSED DATA. THIS DOCUMENT PRESENTS THE METHODS UTILIZED TO ASSESS DATA QUALITY AT MULTIPLE…

AbstractDue to aspect-oriented mechanisms explosion, their concepts arrive to distributed systems tackling concepts as security, persistence, or synchronization, especially in middleware approaches. Regarding distributed databases, the research has been focused mainly on object-oriented databases. Based on the great impact of…

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THE DISASTERS CAUSED BY NATURAL PHENOMENA HAVE BEEN PRESENT ALL ALONG HUMAN HISTORY; NEVERTHELESS, THEIR CONSEQUENCES ARE GREATER EACH TIME. THIS TENDENCY WILL NOT BE REVERTED IN THE COMING YEARS; ON THE CONTRARY, IT IS EXPECTED THAT NATURAL PHENOMENA WILL…

WE PRESENT A NOVEL METHOD FOR LOSSLESS DATA COMPRESSION THAT AIMS TO GET A DIFFERENT PERFORMANCE TO THOSE PROPOSED IN THE LAST DECADES TO TACKLE THE UNDERLYING VOLUME OF DATA OF THE INFORMATION AND MULTIMEDIA AGES. THESE LATTER METHODS ARE…

Describes dic nature and development of interbehavioral psychology, with particular reference to its origin, postulation, data, operations, laws, asid implications., Describe la naturaleza y desarrollo de la psicologi’a interconductural, con peticular referencia a su origen, postulación, datos, operaciones, leyes e…

Peer reinforcement in the classroom offers advantages. Research in this area suggests that peer reinforcement can be powerful tool to control nonacademic classroom behaviors. No evidence was found concerning the importance of some variables, such as "popularity" and positive social…

THIS ARTICLE PRESENTS THE USE OF THE SIMULATED ANNEALING ALGORITHM WITH A HEURISTIC TO SOLVE THE WASTE MINIMIZATION PROBLEM IN ROLL CUTTING PROGRAMMING, IN THIS CASE, PAPER. CLIENT ORDERS, WHICH VARY IN WEIGHT, WIDTH, AND EXTERNAL AND INTERNAL DIAMETER, ARE…

AbstractSince the emergence of public-private partnerships (PPPs) in the 1980s, there has been a structural change in the way countries now finance and provide public infrastructure. Although national governments apparently encourage PPPs, and many have succeeded, some others have failed.…

During the last years a lot of projects and lines of research have emerged from different proposals trying to find the best way to reach data integration. Two powerful techniques have appeared separately – ontology and contextual information – in…